PHP firebird insert blob file into the database apache suddenly stop working

I'm currently working on inserting image on the firebird database and it's working fine alone, see the code below.

$dbh = ibase_connect($host, $user, $pass);

$blh = ibase_blob_create($dbh);   
ibase_blob_add($blh, $data);
$blobid = ibase_blob_close($blh);

$sql = "INSERT INTO blobtable(blobfield) VALUES (?)";  
$sth = ibase_query($dbh, $sql, $blobid);

but when I add some data on the insert statement suddenly the apache crash and stops working. See below code when I add new data.

$dbh = ibase_connect($host, $user, $pass);

$blh = ibase_blob_create($dbh);   
ibase_blob_add($blh, $data);
$blobid = ibase_blob_close($blh);

$sql = "INSERT INTO blobtable(name, desc, blobfield ) VALUES (?, ?, ?)";   
$sth = ibase_query($dbh, $sql, $name, $desc, $blobid);